Distributed feeding device for antenna beamforming
US9748648B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2014 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Dec 1, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/2676
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A distributed feeding device for antenna beamforming comprises a first distributed feeding circuit comprising P inputs and N outputs, for producing a signal on each of its outputs with a phase shift which is substantially constant between two adjacent outputs, at least one frequency multiplexer connected to at least one input of the said first circuit, a number N of frequency demultiplexers each connected, by their input, to an output of the first circuit and a second distributed feeding means comprising a plurality of inputs, each connected to an output of one of the frequency demultiplexers, and a plurality of outputs, the second distributed feeding means comprising at least one second distributed feeding circuit comprising Q inputs and M outputs, for producing a signal on each output with a phase shift which is substantially constant between two adjacent outputs, the integers P, N, Q and M being equal or distinct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.